QGIS ReFH2 to TUFLOW: Difference between revisions

=Using TUFLOW Events=

In most hydraulic modelling applications there will be a requirement to run a number of return period design events, potentially with a number of different durations. TUFLOW’s event options makes the management of these simulations a simpler process. TUFLOW’s event management structure uses a variety of wildcard characters in the TCF file and the boundary condition database for event inputs. The wildcards are replaced with user defined event specific acronyms when a simulation is run from a batch file. This will significantly reduce the number of repetitive files required to execute a project. TUFLOW event management is shown in the following image.

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[[File:Tuflow_Events.jpg]]<br>

 

The wildcard works on column 2. So we can use this to obtain the return period as specified in the batch file and read the relevant column from a csv file exported directly from ReFH2. For example, in the file directly exported from ReFH2, the 1 year net rainfall column is called "Total flow m3/s (1 year) - as 100% rural model”. We can set column 2 to look for the "Total flow m3/s (~ARI~) – as 100% rural model" bc_dbase setup to read the relevant net rainfall column for the return period of interest based on the ARI wildcard.

 

Once the bc_base has been set up then a .tef file can be generated which populates the ARI variable above with the relevant return period for the specific question.

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This will then run the 3 return periods (1yr, 2yr and 5 year) using the correct wildcard as specified in the tef file and using the relevant boundary data.

 

=Summary=